Custom Gearbox is very loud

[Chris is me]

Originally Posted by Tottanka

We used the exact pitch diameters.
We will try checking each motor separately on Sunday, and than if that doesnt work we'll probably remake the plates.
I'll keep the results posted here.
Thanks everyone!

If you didn't add the center distance, and you're using aluminum gears, one trick is to run the gearbox on a bench for about an hour or so, ungreased, changing direction frequently. This will wear down the parts somewhat, to sort of "break in" the gears. Once this is done, clean the gearbox out thoroughly, heavily grease it, and you're good to go.

The .003 center adder trick is a way around doing this, at the cost of a bit more backlash in your system.